Automated invoice reminders that get you paid faster, without the premium upsells.
Small business owners are frustrated with invoicing tools that lack built-in payment reminders and automation unless they pay steep pricing tiers.
BillNudge lets small business owners create and send professional invoices with built-in automated payment reminders sent via email and SMS. It handles escalating reminders on customizable schedules, tracks payment status, and integrates one-click payments, all at a flat affordable price. No more manual chasing or expensive add-ons.
Small business owners managing invoicing and payments
Dead-simple setup with zero-configuration reminder sequences tailored for solopreneurs and tiny teams.
friendly
Drag-and-drop invoice builder with templates, PDF export, and custom branding.
Send timed email/SMS reminders with escalation (gentle, firm, urgent).
Embed Stripe payment links in invoices and reminders for instant payments.
Real-time dashboard showing paid, overdue, and reminder status.
Store client details, payment history, and preferences.
Library of reminder email/SMS templates with personalization.
Send reminders to multiple overdue invoices at once.
Basic analytics on collection rates and average days to pay.
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| text | No | |
| stripe_customer_id | text | Yes |
| created_at | timestamp | No |
Relationships:
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| user_id | uuid | No |
| client_email | text | No |
| amount | int | No |
| status | text | No |
| due_date | timestamp | No |
Relationships:
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| invoice_id | uuid | No |
| type | text | No |
| sent_at | timestamp | Yes |
| delivered | bool | Yes |
Relationships:
/api/invoicesCreate new invoice
/api/invoices/:idGet invoice details
/api/reminders/send/:invoiceIdTrigger reminder
/api/dashboardFetch user dashboard data
/api/clientsAdd client
No SMS, no custom templates
50 clients
None
| Month | Users | Conversion | MRR | ARR |
|---|---|---|---|---|
| Month 1 | 50 | 10% | $125 | $1,500 |
| Month 6 | 300 | 8% | $1,200 | $14,400 |
Affordable invoicing with smart auto-reminders via email & SMS. Get paid 30% faster.
Post in r/smallbusiness and r/Entrepreneur with a free beta invite link, offering lifetime Pro access for feedback. DM 10 local freelancers from LinkedIn searches for 'freelance invoice pain'. Run $50 Facebook ad targeting 'small business invoicing'.
Full accounting
Reminders in higher tiers
Reminders from day 1 at fixed low price
Open source
Manual reminders
Fully automated sequences
First-mover in ultra-simple reminder automation for micro-businesses, with sticky payment data lock-in.
Rise of solopreneurs post-pandemic, with Stripe's easy APIs enabling fast builds amid economic pressure for cashflow.
Email deliverability issues
Use Resend/Twilio, warm up IPs
Low adoption due to incumbents
Niche focus on reminders pain
Solo dev overload
Strict timeline, MVP scope
Success: 80% confirm reminder frustration
Success: 50% retention week 2
Success: 100 users week 1
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